Home / 1,505.32-2,078.58-1,040.92

Finding the Fourth Proportional to 1,505.32, 2,078.58 and 1,040.92

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Solution

The fourth proportional to 1,505.32, 2,078.58 and 1,040.92 is: 1,437.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505.32 : 2,078.58 = 1,040.92 : x
  2. Step 2: Convert to fraction form
    1,505.32/2,078.58 = 1,040.92/x
  3. Step 3: Cross multiply
    1,505.32x = 2,078.58 × 1,040.92
  4. Step 4: Simplify right side
    1,505.32x = 2,163,635.49
  5. Step 5: Solve for x
    x = 2,163,635.49/1,505.32
  6. Step 6: Final answer
    x = 1,437.33

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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.