Home / 4,078.47-6,117.71-1,156.40

Finding the Fourth Proportional to 4,078.47, 6,117.71 and 1,156.40

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Solution

The fourth proportional to 4,078.47, 6,117.71 and 1,156.40 is: 1,734.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.47 : 6,117.71 = 1,156.40 : x
  2. Step 2: Convert to fraction form
    4,078.47/6,117.71 = 1,156.40/x
  3. Step 3: Cross multiply
    4,078.47x = 6,117.71 × 1,156.40
  4. Step 4: Simplify right side
    4,078.47x = 7,074,483.47
  5. Step 5: Solve for x
    x = 7,074,483.47/4,078.47
  6. Step 6: Final answer
    x = 1,734.59

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Double scale
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Similar ratio
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1.5x scale

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.