Home / 4,343.16-6,513.37-1,420.78

Finding the Fourth Proportional to 4,343.16, 6,513.37 and 1,420.78

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Solution

The fourth proportional to 4,343.16, 6,513.37 and 1,420.78 is: 2,130.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,343.16 : 6,513.37 = 1,420.78 : x
  2. Step 2: Convert to fraction form
    4,343.16/6,513.37 = 1,420.78/x
  3. Step 3: Cross multiply
    4,343.16x = 6,513.37 × 1,420.78
  4. Step 4: Simplify right side
    4,343.16x = 9,254,085.66
  5. Step 5: Solve for x
    x = 9,254,085.66/4,343.16
  6. Step 6: Final answer
    x = 2,130.73

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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.