Home / 2,486.88-3,430.80-1,491.84

Finding the Fourth Proportional to 2,486.88, 3,430.80 and 1,491.84

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Solution

The fourth proportional to 2,486.88, 3,430.80 and 1,491.84 is: 2,058.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.88 : 3,430.80 = 1,491.84 : x
  2. Step 2: Convert to fraction form
    2,486.88/3,430.80 = 1,491.84/x
  3. Step 3: Cross multiply
    2,486.88x = 3,430.80 × 1,491.84
  4. Step 4: Simplify right side
    2,486.88x = 5,118,204.67
  5. Step 5: Solve for x
    x = 5,118,204.67/2,486.88
  6. Step 6: Final answer
    x = 2,058.08

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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.