Home / 7,641.40-10,545.71-4,284.36

Finding the Fourth Proportional to 7,641.40, 10,545.71 and 4,284.36

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Solution

The fourth proportional to 7,641.40, 10,545.71 and 4,284.36 is: 5,912.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,641.40 : 10,545.71 = 4,284.36 : x
  2. Step 2: Convert to fraction form
    7,641.40/10,545.71 = 4,284.36/x
  3. Step 3: Cross multiply
    7,641.40x = 10,545.71 × 4,284.36
  4. Step 4: Simplify right side
    7,641.40x = 45,181,618.10
  5. Step 5: Solve for x
    x = 45,181,618.10/7,641.40
  6. Step 6: Final answer
    x = 5,912.74

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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.