Home / 1,749.18-2,411.01-1,218.84

Finding the Fourth Proportional to 1,749.18, 2,411.01 and 1,218.84

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Solution

The fourth proportional to 1,749.18, 2,411.01 and 1,218.84 is: 1,680.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749.18 : 2,411.01 = 1,218.84 : x
  2. Step 2: Convert to fraction form
    1,749.18/2,411.01 = 1,218.84/x
  3. Step 3: Cross multiply
    1,749.18x = 2,411.01 × 1,218.84
  4. Step 4: Simplify right side
    1,749.18x = 2,938,635.43
  5. Step 5: Solve for x
    x = 2,938,635.43/1,749.18
  6. Step 6: Final answer
    x = 1,680.01

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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.