Home / 1,875.74-2,587.44-1,129.23

Finding the Fourth Proportional to 1,875.74, 2,587.44 and 1,129.23

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Solution

The fourth proportional to 1,875.74, 2,587.44 and 1,129.23 is: 1,557.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.74 : 2,587.44 = 1,129.23 : x
  2. Step 2: Convert to fraction form
    1,875.74/2,587.44 = 1,129.23/x
  3. Step 3: Cross multiply
    1,875.74x = 2,587.44 × 1,129.23
  4. Step 4: Simplify right side
    1,875.74x = 2,921,814.87
  5. Step 5: Solve for x
    x = 2,921,814.87/1,875.74
  6. Step 6: Final answer
    x = 1,557.69

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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.