Home / 5,420.19-8,130.10-2,298.19

Finding the Fourth Proportional to 5,420.19, 8,130.10 and 2,298.19

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Solution

The fourth proportional to 5,420.19, 8,130.10 and 2,298.19 is: 3,447.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.19 : 8,130.10 = 2,298.19 : x
  2. Step 2: Convert to fraction form
    5,420.19/8,130.10 = 2,298.19/x
  3. Step 3: Cross multiply
    5,420.19x = 8,130.10 × 2,298.19
  4. Step 4: Simplify right side
    5,420.19x = 18,684,514.52
  5. Step 5: Solve for x
    x = 18,684,514.52/5,420.19
  6. Step 6: Final answer
    x = 3,447.21

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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.