Home / 1,506.62-2,079.28-947.50

Finding the Fourth Proportional to 1,506.62, 2,079.28 and 947.50

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Solution

The fourth proportional to 1,506.62, 2,079.28 and 947.50 is: 1,307.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,506.62 : 2,079.28 = 947.50 : x
  2. Step 2: Convert to fraction form
    1,506.62/2,079.28 = 947.50/x
  3. Step 3: Cross multiply
    1,506.62x = 2,079.28 × 947.50
  4. Step 4: Simplify right side
    1,506.62x = 1,970,117.80
  5. Step 5: Solve for x
    x = 1,970,117.80/1,506.62
  6. Step 6: Final answer
    x = 1,307.64

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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.