Home / 7,390.10-11,077.40-2,458.42

Finding the Fourth Proportional to 7,390.10, 11,077.40 and 2,458.42

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Solution

The fourth proportional to 7,390.10, 11,077.40 and 2,458.42 is: 3,685.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.10 : 11,077.40 = 2,458.42 : x
  2. Step 2: Convert to fraction form
    7,390.10/11,077.40 = 2,458.42/x
  3. Step 3: Cross multiply
    7,390.10x = 11,077.40 × 2,458.42
  4. Step 4: Simplify right side
    7,390.10x = 27,232,880.16
  5. Step 5: Solve for x
    x = 27,232,880.16/7,390.10
  6. Step 6: Final answer
    x = 3,685.05

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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.