Home / 2,411.80-3,330.18-1,666.60

Finding the Fourth Proportional to 2,411.80, 3,330.18 and 1,666.60

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Solution

The fourth proportional to 2,411.80, 3,330.18 and 1,666.60 is: 2,301.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,411.80 : 3,330.18 = 1,666.60 : x
  2. Step 2: Convert to fraction form
    2,411.80/3,330.18 = 1,666.60/x
  3. Step 3: Cross multiply
    2,411.80x = 3,330.18 × 1,666.60
  4. Step 4: Simplify right side
    2,411.80x = 5,550,077.99
  5. Step 5: Solve for x
    x = 5,550,077.99/2,411.80
  6. Step 6: Final answer
    x = 2,301.22

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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.