Home / 1,875.45-2,585.19-1,521.90

Finding the Fourth Proportional to 1,875.45, 2,585.19 and 1,521.90

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Solution

The fourth proportional to 1,875.45, 2,585.19 and 1,521.90 is: 2,097.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.45 : 2,585.19 = 1,521.90 : x
  2. Step 2: Convert to fraction form
    1,875.45/2,585.19 = 1,521.90/x
  3. Step 3: Cross multiply
    1,875.45x = 2,585.19 × 1,521.90
  4. Step 4: Simplify right side
    1,875.45x = 3,934,400.66
  5. Step 5: Solve for x
    x = 3,934,400.66/1,875.45
  6. Step 6: Final answer
    x = 2,097.84

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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.