Home / 1,803.78-2,491.56-1,332.63

Finding the Fourth Proportional to 1,803.78, 2,491.56 and 1,332.63

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Solution

The fourth proportional to 1,803.78, 2,491.56 and 1,332.63 is: 1,840.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803.78 : 2,491.56 = 1,332.63 : x
  2. Step 2: Convert to fraction form
    1,803.78/2,491.56 = 1,332.63/x
  3. Step 3: Cross multiply
    1,803.78x = 2,491.56 × 1,332.63
  4. Step 4: Simplify right side
    1,803.78x = 3,320,327.60
  5. Step 5: Solve for x
    x = 3,320,327.60/1,803.78
  6. Step 6: Final answer
    x = 1,840.76

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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.