Home / 2,491.59-3,438.57-1,783.50

Finding the Fourth Proportional to 2,491.59, 3,438.57 and 1,783.50

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Solution

The fourth proportional to 2,491.59, 3,438.57 and 1,783.50 is: 2,461.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.59 : 3,438.57 = 1,783.50 : x
  2. Step 2: Convert to fraction form
    2,491.59/3,438.57 = 1,783.50/x
  3. Step 3: Cross multiply
    2,491.59x = 3,438.57 × 1,783.50
  4. Step 4: Simplify right side
    2,491.59x = 6,132,689.60
  5. Step 5: Solve for x
    x = 6,132,689.60/2,491.59
  6. Step 6: Final answer
    x = 2,461.36

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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.