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Finding the Fourth Proportional to 1,583.01, 2,184.54 and 874.90

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Solution

The fourth proportional to 1,583.01, 2,184.54 and 874.90 is: 1,207.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.01 : 2,184.54 = 874.90 : x
  2. Step 2: Convert to fraction form
    1,583.01/2,184.54 = 874.90/x
  3. Step 3: Cross multiply
    1,583.01x = 2,184.54 × 874.90
  4. Step 4: Simplify right side
    1,583.01x = 1,911,241.48
  5. Step 5: Solve for x
    x = 1,911,241.48/1,583.01
  6. Step 6: Final answer
    x = 1,207.35

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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.