Home / 5,312.93-7,970.31-1,615.53

Finding the Fourth Proportional to 5,312.93, 7,970.31 and 1,615.53

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Solution

The fourth proportional to 5,312.93, 7,970.31 and 1,615.53 is: 2,423.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.93 : 7,970.31 = 1,615.53 : x
  2. Step 2: Convert to fraction form
    5,312.93/7,970.31 = 1,615.53/x
  3. Step 3: Cross multiply
    5,312.93x = 7,970.31 × 1,615.53
  4. Step 4: Simplify right side
    5,312.93x = 12,876,274.91
  5. Step 5: Solve for x
    x = 12,876,274.91/5,312.93
  6. Step 6: Final answer
    x = 2,423.57

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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.