Home / 7,715.95-10,648.01-4,179.17

Finding the Fourth Proportional to 7,715.95, 10,648.01 and 4,179.17

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Solution

The fourth proportional to 7,715.95, 10,648.01 and 4,179.17 is: 5,767.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.95 : 10,648.01 = 4,179.17 : x
  2. Step 2: Convert to fraction form
    7,715.95/10,648.01 = 4,179.17/x
  3. Step 3: Cross multiply
    7,715.95x = 10,648.01 × 4,179.17
  4. Step 4: Simplify right side
    7,715.95x = 44,499,881.02
  5. Step 5: Solve for x
    x = 44,499,881.02/7,715.95
  6. Step 6: Final answer
    x = 5,767.26

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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.