Home / 5,263.79-7,264.97-3,139.46

Finding the Fourth Proportional to 5,263.79, 7,264.97 and 3,139.46

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Solution

The fourth proportional to 5,263.79, 7,264.97 and 3,139.46 is: 4,333.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,263.79 : 7,264.97 = 3,139.46 : x
  2. Step 2: Convert to fraction form
    5,263.79/7,264.97 = 3,139.46/x
  3. Step 3: Cross multiply
    5,263.79x = 7,264.97 × 3,139.46
  4. Step 4: Simplify right side
    5,263.79x = 22,808,082.72
  5. Step 5: Solve for x
    x = 22,808,082.72/5,263.79
  6. Step 6: Final answer
    x = 4,333.02

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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.