Home / 5,225.64-7,211.52-2,987.88

Finding the Fourth Proportional to 5,225.64, 7,211.52 and 2,987.88

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Solution

The fourth proportional to 5,225.64, 7,211.52 and 2,987.88 is: 4,123.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.64 : 7,211.52 = 2,987.88 : x
  2. Step 2: Convert to fraction form
    5,225.64/7,211.52 = 2,987.88/x
  3. Step 3: Cross multiply
    5,225.64x = 7,211.52 × 2,987.88
  4. Step 4: Simplify right side
    5,225.64x = 21,547,156.38
  5. Step 5: Solve for x
    x = 21,547,156.38/5,225.64
  6. Step 6: Final answer
    x = 4,123.35

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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.