Home / 5,405.38-8,085.02-3,320.26

Finding the Fourth Proportional to 5,405.38, 8,085.02 and 3,320.26

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Solution

The fourth proportional to 5,405.38, 8,085.02 and 3,320.26 is: 4,966.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.38 : 8,085.02 = 3,320.26 : x
  2. Step 2: Convert to fraction form
    5,405.38/8,085.02 = 3,320.26/x
  3. Step 3: Cross multiply
    5,405.38x = 8,085.02 × 3,320.26
  4. Step 4: Simplify right side
    5,405.38x = 26,844,368.51
  5. Step 5: Solve for x
    x = 26,844,368.51/5,405.38
  6. Step 6: Final answer
    x = 4,966.23

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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.