Home / 7,672.40-10,588.72-4,689.98

Finding the Fourth Proportional to 7,672.40, 10,588.72 and 4,689.98

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Solution

The fourth proportional to 7,672.40, 10,588.72 and 4,689.98 is: 6,472.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.40 : 10,588.72 = 4,689.98 : x
  2. Step 2: Convert to fraction form
    7,672.40/10,588.72 = 4,689.98/x
  3. Step 3: Cross multiply
    7,672.40x = 10,588.72 × 4,689.98
  4. Step 4: Simplify right side
    7,672.40x = 49,660,820.36
  5. Step 5: Solve for x
    x = 49,660,820.36/7,672.40
  6. Step 6: Final answer
    x = 6,472.66

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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.