Home / 4,988.48-6,881.32-3,100.36

Finding the Fourth Proportional to 4,988.48, 6,881.32 and 3,100.36

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Solution

The fourth proportional to 4,988.48, 6,881.32 and 3,100.36 is: 4,276.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.48 : 6,881.32 = 3,100.36 : x
  2. Step 2: Convert to fraction form
    4,988.48/6,881.32 = 3,100.36/x
  3. Step 3: Cross multiply
    4,988.48x = 6,881.32 × 3,100.36
  4. Step 4: Simplify right side
    4,988.48x = 21,334,569.28
  5. Step 5: Solve for x
    x = 21,334,569.28/4,988.48
  6. Step 6: Final answer
    x = 4,276.77

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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.