Home / 2,530.18-3,491.80-1,411.20

Finding the Fourth Proportional to 2,530.18, 3,491.80 and 1,411.20

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Solution

The fourth proportional to 2,530.18, 3,491.80 and 1,411.20 is: 1,947.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,530.18 : 3,491.80 = 1,411.20 : x
  2. Step 2: Convert to fraction form
    2,530.18/3,491.80 = 1,411.20/x
  3. Step 3: Cross multiply
    2,530.18x = 3,491.80 × 1,411.20
  4. Step 4: Simplify right side
    2,530.18x = 4,927,628.16
  5. Step 5: Solve for x
    x = 4,927,628.16/2,530.18
  6. Step 6: Final answer
    x = 1,947.54

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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.