Home / 5,312.67-7,970.36-3,123.24

Finding the Fourth Proportional to 5,312.67, 7,970.36 and 3,123.24

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Solution

The fourth proportional to 5,312.67, 7,970.36 and 3,123.24 is: 4,685.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.67 : 7,970.36 = 3,123.24 : x
  2. Step 2: Convert to fraction form
    5,312.67/7,970.36 = 3,123.24/x
  3. Step 3: Cross multiply
    5,312.67x = 7,970.36 × 3,123.24
  4. Step 4: Simplify right side
    5,312.67x = 24,893,347.17
  5. Step 5: Solve for x
    x = 24,893,347.17/5,312.67
  6. Step 6: Final answer
    x = 4,685.66

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1.5x scale

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.