Home / 4,343.06-6,515.40-1,420.58

Finding the Fourth Proportional to 4,343.06, 6,515.40 and 1,420.58

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Solution

The fourth proportional to 4,343.06, 6,515.40 and 1,420.58 is: 2,131.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,343.06 : 6,515.40 = 1,420.58 : x
  2. Step 2: Convert to fraction form
    4,343.06/6,515.40 = 1,420.58/x
  3. Step 3: Cross multiply
    4,343.06x = 6,515.40 × 1,420.58
  4. Step 4: Simplify right side
    4,343.06x = 9,255,646.93
  5. Step 5: Solve for x
    x = 9,255,646.93/4,343.06
  6. Step 6: Final answer
    x = 2,131.13

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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.