Home / 2,013.90-3,018.60-974.40

Finding the Fourth Proportional to 2,013.90, 3,018.60 and 974.40

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Solution

The fourth proportional to 2,013.90, 3,018.60 and 974.40 is: 1,460.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.90 : 3,018.60 = 974.40 : x
  2. Step 2: Convert to fraction form
    2,013.90/3,018.60 = 974.40/x
  3. Step 3: Cross multiply
    2,013.90x = 3,018.60 × 974.40
  4. Step 4: Simplify right side
    2,013.90x = 2,941,323.84
  5. Step 5: Solve for x
    x = 2,941,323.84/2,013.90
  6. Step 6: Final answer
    x = 1,460.51

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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.