Home / 5,470.99-7,547.28-3,877.98

Finding the Fourth Proportional to 5,470.99, 7,547.28 and 3,877.98

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Solution

The fourth proportional to 5,470.99, 7,547.28 and 3,877.98 is: 5,349.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.99 : 7,547.28 = 3,877.98 : x
  2. Step 2: Convert to fraction form
    5,470.99/7,547.28 = 3,877.98/x
  3. Step 3: Cross multiply
    5,470.99x = 7,547.28 × 3,877.98
  4. Step 4: Simplify right side
    5,470.99x = 29,268,158.05
  5. Step 5: Solve for x
    x = 29,268,158.05/5,470.99
  6. Step 6: Final answer
    x = 5,349.70

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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.