Home / 7,710.24-10,639.62-4,307.21

Finding the Fourth Proportional to 7,710.24, 10,639.62 and 4,307.21

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Solution

The fourth proportional to 7,710.24, 10,639.62 and 4,307.21 is: 5,943.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,710.24 : 10,639.62 = 4,307.21 : x
  2. Step 2: Convert to fraction form
    7,710.24/10,639.62 = 4,307.21/x
  3. Step 3: Cross multiply
    7,710.24x = 10,639.62 × 4,307.21
  4. Step 4: Simplify right side
    7,710.24x = 45,827,024.46
  5. Step 5: Solve for x
    x = 45,827,024.46/7,710.24
  6. Step 6: Final answer
    x = 5,943.66

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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.