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Finding the Fourth Proportional to 1,353.64, 1,868.04 and 794.08

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Solution

The fourth proportional to 1,353.64, 1,868.04 and 794.08 is: 1,095.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.64 : 1,868.04 = 794.08 : x
  2. Step 2: Convert to fraction form
    1,353.64/1,868.04 = 794.08/x
  3. Step 3: Cross multiply
    1,353.64x = 1,868.04 × 794.08
  4. Step 4: Simplify right side
    1,353.64x = 1,483,373.20
  5. Step 5: Solve for x
    x = 1,483,373.20/1,353.64
  6. Step 6: Final answer
    x = 1,095.84

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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.