Home / 2,111.04-3,166.40-742.08

Finding the Fourth Proportional to 2,111.04, 3,166.40 and 742.08

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Solution

The fourth proportional to 2,111.04, 3,166.40 and 742.08 is: 1,113.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111.04 : 3,166.40 = 742.08 : x
  2. Step 2: Convert to fraction form
    2,111.04/3,166.40 = 742.08/x
  3. Step 3: Cross multiply
    2,111.04x = 3,166.40 × 742.08
  4. Step 4: Simplify right side
    2,111.04x = 2,349,722.11
  5. Step 5: Solve for x
    x = 2,349,722.11/2,111.04
  6. Step 6: Final answer
    x = 1,113.06

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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.