Home / 3,070.80-4,607.40-1,123.16

Finding the Fourth Proportional to 3,070.80, 4,607.40 and 1,123.16

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Solution

The fourth proportional to 3,070.80, 4,607.40 and 1,123.16 is: 1,685.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.80 : 4,607.40 = 1,123.16 : x
  2. Step 2: Convert to fraction form
    3,070.80/4,607.40 = 1,123.16/x
  3. Step 3: Cross multiply
    3,070.80x = 4,607.40 × 1,123.16
  4. Step 4: Simplify right side
    3,070.80x = 5,174,824.35
  5. Step 5: Solve for x
    x = 5,174,824.35/3,070.80
  6. Step 6: Final answer
    x = 1,685.17

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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.