Home / 2,318.10-3,460.13-2,172.30

Finding the Fourth Proportional to 2,318.10, 3,460.13 and 2,172.30

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Solution

The fourth proportional to 2,318.10, 3,460.13 and 2,172.30 is: 3,242.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.10 : 3,460.13 = 2,172.30 : x
  2. Step 2: Convert to fraction form
    2,318.10/3,460.13 = 2,172.30/x
  3. Step 3: Cross multiply
    2,318.10x = 3,460.13 × 2,172.30
  4. Step 4: Simplify right side
    2,318.10x = 7,516,429.54
  5. Step 5: Solve for x
    x = 7,516,429.54/2,318.10
  6. Step 6: Final answer
    x = 3,242.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.