Home / 5,106.32-7,045.48-2,980.63

Finding the Fourth Proportional to 5,106.32, 7,045.48 and 2,980.63

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Solution

The fourth proportional to 5,106.32, 7,045.48 and 2,980.63 is: 4,112.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.32 : 7,045.48 = 2,980.63 : x
  2. Step 2: Convert to fraction form
    5,106.32/7,045.48 = 2,980.63/x
  3. Step 3: Cross multiply
    5,106.32x = 7,045.48 × 2,980.63
  4. Step 4: Simplify right side
    5,106.32x = 20,999,961.60
  5. Step 5: Solve for x
    x = 20,999,961.60/5,106.32
  6. Step 6: Final answer
    x = 4,112.55

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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.