Home / 5,058.16-6,980.47-2,820.03

Finding the Fourth Proportional to 5,058.16, 6,980.47 and 2,820.03

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Solution

The fourth proportional to 5,058.16, 6,980.47 and 2,820.03 is: 3,891.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,058.16 : 6,980.47 = 2,820.03 : x
  2. Step 2: Convert to fraction form
    5,058.16/6,980.47 = 2,820.03/x
  3. Step 3: Cross multiply
    5,058.16x = 6,980.47 × 2,820.03
  4. Step 4: Simplify right side
    5,058.16x = 19,685,134.81
  5. Step 5: Solve for x
    x = 19,685,134.81/5,058.16
  6. Step 6: Final answer
    x = 3,891.76

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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.