Home / 4,870.16-6,720.36-2,981.08

Finding the Fourth Proportional to 4,870.16, 6,720.36 and 2,981.08

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Solution

The fourth proportional to 4,870.16, 6,720.36 and 2,981.08 is: 4,113.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.16 : 6,720.36 = 2,981.08 : x
  2. Step 2: Convert to fraction form
    4,870.16/6,720.36 = 2,981.08/x
  3. Step 3: Cross multiply
    4,870.16x = 6,720.36 × 2,981.08
  4. Step 4: Simplify right side
    4,870.16x = 20,033,930.79
  5. Step 5: Solve for x
    x = 20,033,930.79/4,870.16
  6. Step 6: Final answer
    x = 4,113.61

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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.