Home / 5,090.46-7,636.88-1,580.28

Finding the Fourth Proportional to 5,090.46, 7,636.88 and 1,580.28

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Solution

The fourth proportional to 5,090.46, 7,636.88 and 1,580.28 is: 2,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.46 : 7,636.88 = 1,580.28 : x
  2. Step 2: Convert to fraction form
    5,090.46/7,636.88 = 1,580.28/x
  3. Step 3: Cross multiply
    5,090.46x = 7,636.88 × 1,580.28
  4. Step 4: Simplify right side
    5,090.46x = 12,068,437.36
  5. Step 5: Solve for x
    x = 12,068,437.36/5,090.46
  6. Step 6: Final answer
    x = 2,370.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.