Home / 2,125.85-2,934.02-1,590.17

Finding the Fourth Proportional to 2,125.85, 2,934.02 and 1,590.17

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Solution

The fourth proportional to 2,125.85, 2,934.02 and 1,590.17 is: 2,194.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.85 : 2,934.02 = 1,590.17 : x
  2. Step 2: Convert to fraction form
    2,125.85/2,934.02 = 1,590.17/x
  3. Step 3: Cross multiply
    2,125.85x = 2,934.02 × 1,590.17
  4. Step 4: Simplify right side
    2,125.85x = 4,665,579.89
  5. Step 5: Solve for x
    x = 4,665,579.89/2,125.85
  6. Step 6: Final answer
    x = 2,194.69

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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.