Home / 5,140.32-7,710.40-1,244.69

Finding the Fourth Proportional to 5,140.32, 7,710.40 and 1,244.69

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Solution

The fourth proportional to 5,140.32, 7,710.40 and 1,244.69 is: 1,867.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.32 : 7,710.40 = 1,244.69 : x
  2. Step 2: Convert to fraction form
    5,140.32/7,710.40 = 1,244.69/x
  3. Step 3: Cross multiply
    5,140.32x = 7,710.40 × 1,244.69
  4. Step 4: Simplify right side
    5,140.32x = 9,597,057.78
  5. Step 5: Solve for x
    x = 9,597,057.78/5,140.32
  6. Step 6: Final answer
    x = 1,867.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.