Home / 7,721.84-10,655.88-4,737.80

Finding the Fourth Proportional to 7,721.84, 10,655.88 and 4,737.80

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Solution

The fourth proportional to 7,721.84, 10,655.88 and 4,737.80 is: 6,538.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.84 : 10,655.88 = 4,737.80 : x
  2. Step 2: Convert to fraction form
    7,721.84/10,655.88 = 4,737.80/x
  3. Step 3: Cross multiply
    7,721.84x = 10,655.88 × 4,737.80
  4. Step 4: Simplify right side
    7,721.84x = 50,485,428.26
  5. Step 5: Solve for x
    x = 50,485,428.26/7,721.84
  6. Step 6: Final answer
    x = 6,538.00

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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.