Home / 5,312.17-7,965.51-2,387.98

Finding the Fourth Proportional to 5,312.17, 7,965.51 and 2,387.98

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Solution

The fourth proportional to 5,312.17, 7,965.51 and 2,387.98 is: 3,580.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.17 : 7,965.51 = 2,387.98 : x
  2. Step 2: Convert to fraction form
    5,312.17/7,965.51 = 2,387.98/x
  3. Step 3: Cross multiply
    5,312.17x = 7,965.51 × 2,387.98
  4. Step 4: Simplify right side
    5,312.17x = 19,021,478.57
  5. Step 5: Solve for x
    x = 19,021,478.57/5,312.17
  6. Step 6: Final answer
    x = 3,580.74

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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.