Home / 7,417.31-11,125.67-1,870.58

Finding the Fourth Proportional to 7,417.31, 11,125.67 and 1,870.58

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Solution

The fourth proportional to 7,417.31, 11,125.67 and 1,870.58 is: 2,805.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,417.31 : 11,125.67 = 1,870.58 : x
  2. Step 2: Convert to fraction form
    7,417.31/11,125.67 = 1,870.58/x
  3. Step 3: Cross multiply
    7,417.31x = 11,125.67 × 1,870.58
  4. Step 4: Simplify right side
    7,417.31x = 20,811,422.19
  5. Step 5: Solve for x
    x = 20,811,422.19/7,417.31
  6. Step 6: Final answer
    x = 2,805.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.