Home / 7,141.80-9,854.96-4,117.26

Finding the Fourth Proportional to 7,141.80, 9,854.96 and 4,117.26

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Solution

The fourth proportional to 7,141.80, 9,854.96 and 4,117.26 is: 5,681.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.80 : 9,854.96 = 4,117.26 : x
  2. Step 2: Convert to fraction form
    7,141.80/9,854.96 = 4,117.26/x
  3. Step 3: Cross multiply
    7,141.80x = 9,854.96 × 4,117.26
  4. Step 4: Simplify right side
    7,141.80x = 40,575,412.02
  5. Step 5: Solve for x
    x = 40,575,412.02/7,141.80
  6. Step 6: Final answer
    x = 5,681.40

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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.