Home / 4,386.90-6,580.36-1,887.56

Finding the Fourth Proportional to 4,386.90, 6,580.36 and 1,887.56

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Solution

The fourth proportional to 4,386.90, 6,580.36 and 1,887.56 is: 2,831.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,386.90 : 6,580.36 = 1,887.56 : x
  2. Step 2: Convert to fraction form
    4,386.90/6,580.36 = 1,887.56/x
  3. Step 3: Cross multiply
    4,386.90x = 6,580.36 × 1,887.56
  4. Step 4: Simplify right side
    4,386.90x = 12,420,824.32
  5. Step 5: Solve for x
    x = 12,420,824.32/4,386.90
  6. Step 6: Final answer
    x = 2,831.34

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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.