Home / 1,875.48-2,587.56-1,089.24

Finding the Fourth Proportional to 1,875.48, 2,587.56 and 1,089.24

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Solution

The fourth proportional to 1,875.48, 2,587.56 and 1,089.24 is: 1,502.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.48 : 2,587.56 = 1,089.24 : x
  2. Step 2: Convert to fraction form
    1,875.48/2,587.56 = 1,089.24/x
  3. Step 3: Cross multiply
    1,875.48x = 2,587.56 × 1,089.24
  4. Step 4: Simplify right side
    1,875.48x = 2,818,473.85
  5. Step 5: Solve for x
    x = 2,818,473.85/1,875.48
  6. Step 6: Final answer
    x = 1,502.80

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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.