Home / 2,555.60-3,810.39-2,491.81

Finding the Fourth Proportional to 2,555.60, 3,810.39 and 2,491.81

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Solution

The fourth proportional to 2,555.60, 3,810.39 and 2,491.81 is: 3,715.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555.60 : 3,810.39 = 2,491.81 : x
  2. Step 2: Convert to fraction form
    2,555.60/3,810.39 = 2,491.81/x
  3. Step 3: Cross multiply
    2,555.60x = 3,810.39 × 2,491.81
  4. Step 4: Simplify right side
    2,555.60x = 9,494,784.49
  5. Step 5: Solve for x
    x = 9,494,784.49/2,555.60
  6. Step 6: Final answer
    x = 3,715.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.