Home / 4,718.40-7,077.60-2,670.40

Finding the Fourth Proportional to 4,718.40, 7,077.60 and 2,670.40

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Solution

The fourth proportional to 4,718.40, 7,077.60 and 2,670.40 is: 4,005.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718.40 : 7,077.60 = 2,670.40 : x
  2. Step 2: Convert to fraction form
    4,718.40/7,077.60 = 2,670.40/x
  3. Step 3: Cross multiply
    4,718.40x = 7,077.60 × 2,670.40
  4. Step 4: Simplify right side
    4,718.40x = 18,900,023.04
  5. Step 5: Solve for x
    x = 18,900,023.04/4,718.40
  6. Step 6: Final answer
    x = 4,005.60

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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.