Home / 4,971.40-6,860.46-2,981.32

Finding the Fourth Proportional to 4,971.40, 6,860.46 and 2,981.32

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Solution

The fourth proportional to 4,971.40, 6,860.46 and 2,981.32 is: 4,114.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.40 : 6,860.46 = 2,981.32 : x
  2. Step 2: Convert to fraction form
    4,971.40/6,860.46 = 2,981.32/x
  3. Step 3: Cross multiply
    4,971.40x = 6,860.46 × 2,981.32
  4. Step 4: Simplify right side
    4,971.40x = 20,453,226.61
  5. Step 5: Solve for x
    x = 20,453,226.61/4,971.40
  6. Step 6: Final answer
    x = 4,114.18

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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.