Home / 1,874.51-2,587.10-1,088.40

Finding the Fourth Proportional to 1,874.51, 2,587.10 and 1,088.40

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Solution

The fourth proportional to 1,874.51, 2,587.10 and 1,088.40 is: 1,502.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.51 : 2,587.10 = 1,088.40 : x
  2. Step 2: Convert to fraction form
    1,874.51/2,587.10 = 1,088.40/x
  3. Step 3: Cross multiply
    1,874.51x = 2,587.10 × 1,088.40
  4. Step 4: Simplify right side
    1,874.51x = 2,815,794.20
  5. Step 5: Solve for x
    x = 2,815,794.20/1,874.51
  6. Step 6: Final answer
    x = 1,502.15

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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.