Home / 3,123.16-4,685.52-1,368.16

Finding the Fourth Proportional to 3,123.16, 4,685.52 and 1,368.16

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Solution

The fourth proportional to 3,123.16, 4,685.52 and 1,368.16 is: 2,052.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.16 : 4,685.52 = 1,368.16 : x
  2. Step 2: Convert to fraction form
    3,123.16/4,685.52 = 1,368.16/x
  3. Step 3: Cross multiply
    3,123.16x = 4,685.52 × 1,368.16
  4. Step 4: Simplify right side
    3,123.16x = 6,410,541.04
  5. Step 5: Solve for x
    x = 6,410,541.04/3,123.16
  6. Step 6: Final answer
    x = 2,052.58

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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.