Home / 5,870.75-8,805.29-2,172.35

Finding the Fourth Proportional to 5,870.75, 8,805.29 and 2,172.35

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Solution

The fourth proportional to 5,870.75, 8,805.29 and 2,172.35 is: 3,258.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,870.75 : 8,805.29 = 2,172.35 : x
  2. Step 2: Convert to fraction form
    5,870.75/8,805.29 = 2,172.35/x
  3. Step 3: Cross multiply
    5,870.75x = 8,805.29 × 2,172.35
  4. Step 4: Simplify right side
    5,870.75x = 19,128,116.84
  5. Step 5: Solve for x
    x = 19,128,116.84/5,870.75
  6. Step 6: Final answer
    x = 3,258.21

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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.