Home / 1,880.30-2,820.12-710.41

Finding the Fourth Proportional to 1,880.30, 2,820.12 and 710.41

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Solution

The fourth proportional to 1,880.30, 2,820.12 and 710.41 is: 1,065.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.30 : 2,820.12 = 710.41 : x
  2. Step 2: Convert to fraction form
    1,880.30/2,820.12 = 710.41/x
  3. Step 3: Cross multiply
    1,880.30x = 2,820.12 × 710.41
  4. Step 4: Simplify right side
    1,880.30x = 2,003,427.35
  5. Step 5: Solve for x
    x = 2,003,427.35/1,880.30
  6. Step 6: Final answer
    x = 1,065.48

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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.