Home / 1,750.32-2,415.12-1,042.40

Finding the Fourth Proportional to 1,750.32, 2,415.12 and 1,042.40

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Solution

The fourth proportional to 1,750.32, 2,415.12 and 1,042.40 is: 1,438.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750.32 : 2,415.12 = 1,042.40 : x
  2. Step 2: Convert to fraction form
    1,750.32/2,415.12 = 1,042.40/x
  3. Step 3: Cross multiply
    1,750.32x = 2,415.12 × 1,042.40
  4. Step 4: Simplify right side
    1,750.32x = 2,517,521.09
  5. Step 5: Solve for x
    x = 2,517,521.09/1,750.32
  6. Step 6: Final answer
    x = 1,438.32

Related Problems

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.