Home / 1,742.06-2,612.90-509.48

Finding the Fourth Proportional to 1,742.06, 2,612.90 and 509.48

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Solution

The fourth proportional to 1,742.06, 2,612.90 and 509.48 is: 764.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742.06 : 2,612.90 = 509.48 : x
  2. Step 2: Convert to fraction form
    1,742.06/2,612.90 = 509.48/x
  3. Step 3: Cross multiply
    1,742.06x = 2,612.90 × 509.48
  4. Step 4: Simplify right side
    1,742.06x = 1,331,215.18
  5. Step 5: Solve for x
    x = 1,331,215.18/1,742.06
  6. Step 6: Final answer
    x = 764.16

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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.