Home / 1,585.80-2,189.58-1,026.60

Finding the Fourth Proportional to 1,585.80, 2,189.58 and 1,026.60

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Solution

The fourth proportional to 1,585.80, 2,189.58 and 1,026.60 is: 1,417.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585.80 : 2,189.58 = 1,026.60 : x
  2. Step 2: Convert to fraction form
    1,585.80/2,189.58 = 1,026.60/x
  3. Step 3: Cross multiply
    1,585.80x = 2,189.58 × 1,026.60
  4. Step 4: Simplify right side
    1,585.80x = 2,247,822.83
  5. Step 5: Solve for x
    x = 2,247,822.83/1,585.80
  6. Step 6: Final answer
    x = 1,417.47

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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.