Home / 5,058.52-6,980.75-2,820.39

Finding the Fourth Proportional to 5,058.52, 6,980.75 and 2,820.39

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Solution

The fourth proportional to 5,058.52, 6,980.75 and 2,820.39 is: 3,892.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,058.52 : 6,980.75 = 2,820.39 : x
  2. Step 2: Convert to fraction form
    5,058.52/6,980.75 = 2,820.39/x
  3. Step 3: Cross multiply
    5,058.52x = 6,980.75 × 2,820.39
  4. Step 4: Simplify right side
    5,058.52x = 19,688,407.79
  5. Step 5: Solve for x
    x = 19,688,407.79/5,058.52
  6. Step 6: Final answer
    x = 3,892.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.