Home / 5,547.72-7,656.48-3,158.28

Finding the Fourth Proportional to 5,547.72, 7,656.48 and 3,158.28

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Solution

The fourth proportional to 5,547.72, 7,656.48 and 3,158.28 is: 4,358.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,547.72 : 7,656.48 = 3,158.28 : x
  2. Step 2: Convert to fraction form
    5,547.72/7,656.48 = 3,158.28/x
  3. Step 3: Cross multiply
    5,547.72x = 7,656.48 × 3,158.28
  4. Step 4: Simplify right side
    5,547.72x = 24,181,307.65
  5. Step 5: Solve for x
    x = 24,181,307.65/5,547.72
  6. Step 6: Final answer
    x = 4,358.78

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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.