Home / 2,911.84-4,018.26-1,585.60

Finding the Fourth Proportional to 2,911.84, 4,018.26 and 1,585.60

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Solution

The fourth proportional to 2,911.84, 4,018.26 and 1,585.60 is: 2,188.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.84 : 4,018.26 = 1,585.60 : x
  2. Step 2: Convert to fraction form
    2,911.84/4,018.26 = 1,585.60/x
  3. Step 3: Cross multiply
    2,911.84x = 4,018.26 × 1,585.60
  4. Step 4: Simplify right side
    2,911.84x = 6,371,353.06
  5. Step 5: Solve for x
    x = 6,371,353.06/2,911.84
  6. Step 6: Final answer
    x = 2,188.08

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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.