Home / 7,340.78-10,130.28-4,154.01

Finding the Fourth Proportional to 7,340.78, 10,130.28 and 4,154.01

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Solution

The fourth proportional to 7,340.78, 10,130.28 and 4,154.01 is: 5,732.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.78 : 10,130.28 = 4,154.01 : x
  2. Step 2: Convert to fraction form
    7,340.78/10,130.28 = 4,154.01/x
  3. Step 3: Cross multiply
    7,340.78x = 10,130.28 × 4,154.01
  4. Step 4: Simplify right side
    7,340.78x = 42,081,284.42
  5. Step 5: Solve for x
    x = 42,081,284.42/7,340.78
  6. Step 6: Final answer
    x = 5,732.54

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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.