Home / 2,415.31-3,624.19-1,117.69

Finding the Fourth Proportional to 2,415.31, 3,624.19 and 1,117.69

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Solution

The fourth proportional to 2,415.31, 3,624.19 and 1,117.69 is: 1,677.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.31 : 3,624.19 = 1,117.69 : x
  2. Step 2: Convert to fraction form
    2,415.31/3,624.19 = 1,117.69/x
  3. Step 3: Cross multiply
    2,415.31x = 3,624.19 × 1,117.69
  4. Step 4: Simplify right side
    2,415.31x = 4,050,709.07
  5. Step 5: Solve for x
    x = 4,050,709.07/2,415.31
  6. Step 6: Final answer
    x = 1,677.10

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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.