Home / 3,090.80-4,264.48-1,895.76

Finding the Fourth Proportional to 3,090.80, 4,264.48 and 1,895.76

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Solution

The fourth proportional to 3,090.80, 4,264.48 and 1,895.76 is: 2,615.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.80 : 4,264.48 = 1,895.76 : x
  2. Step 2: Convert to fraction form
    3,090.80/4,264.48 = 1,895.76/x
  3. Step 3: Cross multiply
    3,090.80x = 4,264.48 × 1,895.76
  4. Step 4: Simplify right side
    3,090.80x = 8,084,430.60
  5. Step 5: Solve for x
    x = 8,084,430.60/3,090.80
  6. Step 6: Final answer
    x = 2,615.64

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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.