Home / 1,856.37-2,785.02-929.63

Finding the Fourth Proportional to 1,856.37, 2,785.02 and 929.63

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Solution

The fourth proportional to 1,856.37, 2,785.02 and 929.63 is: 1,394.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.37 : 2,785.02 = 929.63 : x
  2. Step 2: Convert to fraction form
    1,856.37/2,785.02 = 929.63/x
  3. Step 3: Cross multiply
    1,856.37x = 2,785.02 × 929.63
  4. Step 4: Simplify right side
    1,856.37x = 2,589,041.62
  5. Step 5: Solve for x
    x = 2,589,041.62/1,856.37
  6. Step 6: Final answer
    x = 1,394.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.