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Finding the Fourth Proportional to 887.64, 1,225.71 and 741.84

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Solution

The fourth proportional to 887.64, 1,225.71 and 741.84 is: 1,024.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.64 : 1,225.71 = 741.84 : x
  2. Step 2: Convert to fraction form
    887.64/1,225.71 = 741.84/x
  3. Step 3: Cross multiply
    887.64x = 1,225.71 × 741.84
  4. Step 4: Simplify right side
    887.64x = 909,280.71
  5. Step 5: Solve for x
    x = 909,280.71/887.64
  6. Step 6: Final answer
    x = 1,024.38

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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.