Home / 1,210.10-1,812.40-1,182.76

Finding the Fourth Proportional to 1,210.10, 1,812.40 and 1,182.76

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Solution

The fourth proportional to 1,210.10, 1,812.40 and 1,182.76 is: 1,771.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210.10 : 1,812.40 = 1,182.76 : x
  2. Step 2: Convert to fraction form
    1,210.10/1,812.40 = 1,182.76/x
  3. Step 3: Cross multiply
    1,210.10x = 1,812.40 × 1,182.76
  4. Step 4: Simplify right side
    1,210.10x = 2,143,626.74
  5. Step 5: Solve for x
    x = 2,143,626.74/1,210.10
  6. Step 6: Final answer
    x = 1,771.45

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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.