Home / 2,920.31-4,032.68-1,874.19

Finding the Fourth Proportional to 2,920.31, 4,032.68 and 1,874.19

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Solution

The fourth proportional to 2,920.31, 4,032.68 and 1,874.19 is: 2,588.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.31 : 4,032.68 = 1,874.19 : x
  2. Step 2: Convert to fraction form
    2,920.31/4,032.68 = 1,874.19/x
  3. Step 3: Cross multiply
    2,920.31x = 4,032.68 × 1,874.19
  4. Step 4: Simplify right side
    2,920.31x = 7,558,008.53
  5. Step 5: Solve for x
    x = 7,558,008.53/2,920.31
  6. Step 6: Final answer
    x = 2,588.08

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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.