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Finding the Fourth Proportional to 7,615.84, 10,510.80 and 4,472.80

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Solution

The fourth proportional to 7,615.84, 10,510.80 and 4,472.80 is: 6,173.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.84 : 10,510.80 = 4,472.80 : x
  2. Step 2: Convert to fraction form
    7,615.84/10,510.80 = 4,472.80/x
  3. Step 3: Cross multiply
    7,615.84x = 10,510.80 × 4,472.80
  4. Step 4: Simplify right side
    7,615.84x = 47,012,706.24
  5. Step 5: Solve for x
    x = 47,012,706.24/7,615.84
  6. Step 6: Final answer
    x = 6,173.02

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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.