Home / 1,393.50-2,090.18-469.08

Finding the Fourth Proportional to 1,393.50, 2,090.18 and 469.08

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Solution

The fourth proportional to 1,393.50, 2,090.18 and 469.08 is: 703.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393.50 : 2,090.18 = 469.08 : x
  2. Step 2: Convert to fraction form
    1,393.50/2,090.18 = 469.08/x
  3. Step 3: Cross multiply
    1,393.50x = 2,090.18 × 469.08
  4. Step 4: Simplify right side
    1,393.50x = 980,461.63
  5. Step 5: Solve for x
    x = 980,461.63/1,393.50
  6. Step 6: Final answer
    x = 703.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.