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Finding the Fourth Proportional to 7,510.70, 10,365.06 and 4,153.40

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Solution

The fourth proportional to 7,510.70, 10,365.06 and 4,153.40 is: 5,731.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,510.70 : 10,365.06 = 4,153.40 : x
  2. Step 2: Convert to fraction form
    7,510.70/10,365.06 = 4,153.40/x
  3. Step 3: Cross multiply
    7,510.70x = 10,365.06 × 4,153.40
  4. Step 4: Simplify right side
    7,510.70x = 43,050,240.20
  5. Step 5: Solve for x
    x = 43,050,240.20/7,510.70
  6. Step 6: Final answer
    x = 5,731.85

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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.