Home / 2,564.98-3,539.67-1,386.05

Finding the Fourth Proportional to 2,564.98, 3,539.67 and 1,386.05

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Solution

The fourth proportional to 2,564.98, 3,539.67 and 1,386.05 is: 1,912.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,564.98 : 3,539.67 = 1,386.05 : x
  2. Step 2: Convert to fraction form
    2,564.98/3,539.67 = 1,386.05/x
  3. Step 3: Cross multiply
    2,564.98x = 3,539.67 × 1,386.05
  4. Step 4: Simplify right side
    2,564.98x = 4,906,159.60
  5. Step 5: Solve for x
    x = 4,906,159.60/2,564.98
  6. Step 6: Final answer
    x = 1,912.75

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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.