Home / 1,624.14-2,239.58-1,309.07

Finding the Fourth Proportional to 1,624.14, 2,239.58 and 1,309.07

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Solution

The fourth proportional to 1,624.14, 2,239.58 and 1,309.07 is: 1,805.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.14 : 2,239.58 = 1,309.07 : x
  2. Step 2: Convert to fraction form
    1,624.14/2,239.58 = 1,309.07/x
  3. Step 3: Cross multiply
    1,624.14x = 2,239.58 × 1,309.07
  4. Step 4: Simplify right side
    1,624.14x = 2,931,775.86
  5. Step 5: Solve for x
    x = 2,931,775.86/1,624.14
  6. Step 6: Final answer
    x = 1,805.13

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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.