Home / 3,117.62-4,303.02-2,123.30

Finding the Fourth Proportional to 3,117.62, 4,303.02 and 2,123.30

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Solution

The fourth proportional to 3,117.62, 4,303.02 and 2,123.30 is: 2,930.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.62 : 4,303.02 = 2,123.30 : x
  2. Step 2: Convert to fraction form
    3,117.62/4,303.02 = 2,123.30/x
  3. Step 3: Cross multiply
    3,117.62x = 4,303.02 × 2,123.30
  4. Step 4: Simplify right side
    3,117.62x = 9,136,596.88
  5. Step 5: Solve for x
    x = 9,136,596.88/3,117.62
  6. Step 6: Final answer
    x = 2,930.63

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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.