Home / 1,657.37-2,485.87-1,039.20

Finding the Fourth Proportional to 1,657.37, 2,485.87 and 1,039.20

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Solution

The fourth proportional to 1,657.37, 2,485.87 and 1,039.20 is: 1,558.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657.37 : 2,485.87 = 1,039.20 : x
  2. Step 2: Convert to fraction form
    1,657.37/2,485.87 = 1,039.20/x
  3. Step 3: Cross multiply
    1,657.37x = 2,485.87 × 1,039.20
  4. Step 4: Simplify right side
    1,657.37x = 2,583,308.08
  5. Step 5: Solve for x
    x = 2,583,308.08/1,657.37
  6. Step 6: Final answer
    x = 1,558.68

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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.