Home / 5,130.84-7,081.02-3,558.36

Finding the Fourth Proportional to 5,130.84, 7,081.02 and 3,558.36

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Solution

The fourth proportional to 5,130.84, 7,081.02 and 3,558.36 is: 4,910.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.84 : 7,081.02 = 3,558.36 : x
  2. Step 2: Convert to fraction form
    5,130.84/7,081.02 = 3,558.36/x
  3. Step 3: Cross multiply
    5,130.84x = 7,081.02 × 3,558.36
  4. Step 4: Simplify right side
    5,130.84x = 25,196,818.33
  5. Step 5: Solve for x
    x = 25,196,818.33/5,130.84
  6. Step 6: Final answer
    x = 4,910.86

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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.