Home / 6,417.60-8,853.12-3,763.28

Finding the Fourth Proportional to 6,417.60, 8,853.12 and 3,763.28

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Solution

The fourth proportional to 6,417.60, 8,853.12 and 3,763.28 is: 5,191.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,417.60 : 8,853.12 = 3,763.28 : x
  2. Step 2: Convert to fraction form
    6,417.60/8,853.12 = 3,763.28/x
  3. Step 3: Cross multiply
    6,417.60x = 8,853.12 × 3,763.28
  4. Step 4: Simplify right side
    6,417.60x = 33,316,769.43
  5. Step 5: Solve for x
    x = 33,316,769.43/6,417.60
  6. Step 6: Final answer
    x = 5,191.47

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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.