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Finding the Fourth Proportional to 842.04, 1,162.10 and 469.08

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Solution

The fourth proportional to 842.04, 1,162.10 and 469.08 is: 647.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    842.04 : 1,162.10 = 469.08 : x
  2. Step 2: Convert to fraction form
    842.04/1,162.10 = 469.08/x
  3. Step 3: Cross multiply
    842.04x = 1,162.10 × 469.08
  4. Step 4: Simplify right side
    842.04x = 545,117.87
  5. Step 5: Solve for x
    x = 545,117.87/842.04
  6. Step 6: Final answer
    x = 647.38

Related Problems

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Double scale
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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.