Home / 1,875.13-2,587.57-1,129.48

Finding the Fourth Proportional to 1,875.13, 2,587.57 and 1,129.48

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Solution

The fourth proportional to 1,875.13, 2,587.57 and 1,129.48 is: 1,558.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.13 : 2,587.57 = 1,129.48 : x
  2. Step 2: Convert to fraction form
    1,875.13/2,587.57 = 1,129.48/x
  3. Step 3: Cross multiply
    1,875.13x = 2,587.57 × 1,129.48
  4. Step 4: Simplify right side
    1,875.13x = 2,922,599.27
  5. Step 5: Solve for x
    x = 2,922,599.27/1,875.13
  6. Step 6: Final answer
    x = 1,558.61

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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.