Home / 5,720.40-8,574.84-2,020.32

Finding the Fourth Proportional to 5,720.40, 8,574.84 and 2,020.32

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Solution

The fourth proportional to 5,720.40, 8,574.84 and 2,020.32 is: 3,028.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.40 : 8,574.84 = 2,020.32 : x
  2. Step 2: Convert to fraction form
    5,720.40/8,574.84 = 2,020.32/x
  3. Step 3: Cross multiply
    5,720.40x = 8,574.84 × 2,020.32
  4. Step 4: Simplify right side
    5,720.40x = 17,323,920.75
  5. Step 5: Solve for x
    x = 17,323,920.75/5,720.40
  6. Step 6: Final answer
    x = 3,028.45

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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.