Home / 1,876.68-2,587.07-1,315.46

Finding the Fourth Proportional to 1,876.68, 2,587.07 and 1,315.46

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Solution

The fourth proportional to 1,876.68, 2,587.07 and 1,315.46 is: 1,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,876.68 : 2,587.07 = 1,315.46 : x
  2. Step 2: Convert to fraction form
    1,876.68/2,587.07 = 1,315.46/x
  3. Step 3: Cross multiply
    1,876.68x = 2,587.07 × 1,315.46
  4. Step 4: Simplify right side
    1,876.68x = 3,403,177.46
  5. Step 5: Solve for x
    x = 3,403,177.46/1,876.68
  6. Step 6: Final answer
    x = 1,813.40

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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.