Home / 3,090.07-4,264.48-1,764.20

Finding the Fourth Proportional to 3,090.07, 4,264.48 and 1,764.20

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Solution

The fourth proportional to 3,090.07, 4,264.48 and 1,764.20 is: 2,434.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.07 : 4,264.48 = 1,764.20 : x
  2. Step 2: Convert to fraction form
    3,090.07/4,264.48 = 1,764.20/x
  3. Step 3: Cross multiply
    3,090.07x = 4,264.48 × 1,764.20
  4. Step 4: Simplify right side
    3,090.07x = 7,523,395.62
  5. Step 5: Solve for x
    x = 7,523,395.62/3,090.07
  6. Step 6: Final answer
    x = 2,434.70

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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.