Home / 1,678.32-2,316.18-1,049.24

Finding the Fourth Proportional to 1,678.32, 2,316.18 and 1,049.24

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Solution

The fourth proportional to 1,678.32, 2,316.18 and 1,049.24 is: 1,448.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678.32 : 2,316.18 = 1,049.24 : x
  2. Step 2: Convert to fraction form
    1,678.32/2,316.18 = 1,049.24/x
  3. Step 3: Cross multiply
    1,678.32x = 2,316.18 × 1,049.24
  4. Step 4: Simplify right side
    1,678.32x = 2,430,228.70
  5. Step 5: Solve for x
    x = 2,430,228.70/1,678.32
  6. Step 6: Final answer
    x = 1,448.01

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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.