Home / 7,140.10-10,711.18-2,210.18

Finding the Fourth Proportional to 7,140.10, 10,711.18 and 2,210.18

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Solution

The fourth proportional to 7,140.10, 10,711.18 and 2,210.18 is: 3,315.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.10 : 10,711.18 = 2,210.18 : x
  2. Step 2: Convert to fraction form
    7,140.10/10,711.18 = 2,210.18/x
  3. Step 3: Cross multiply
    7,140.10x = 10,711.18 × 2,210.18
  4. Step 4: Simplify right side
    7,140.10x = 23,673,635.81
  5. Step 5: Solve for x
    x = 23,673,635.81/7,140.10
  6. Step 6: Final answer
    x = 3,315.59

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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.