Home / 1,586.02-2,188.20-887.26

Finding the Fourth Proportional to 1,586.02, 2,188.20 and 887.26

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Solution

The fourth proportional to 1,586.02, 2,188.20 and 887.26 is: 1,224.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.02 : 2,188.20 = 887.26 : x
  2. Step 2: Convert to fraction form
    1,586.02/2,188.20 = 887.26/x
  3. Step 3: Cross multiply
    1,586.02x = 2,188.20 × 887.26
  4. Step 4: Simplify right side
    1,586.02x = 1,941,502.33
  5. Step 5: Solve for x
    x = 1,941,502.33/1,586.02
  6. Step 6: Final answer
    x = 1,224.13

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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.