Home / 1,558.39-2,153.31-1,246.23

Finding the Fourth Proportional to 1,558.39, 2,153.31 and 1,246.23

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Solution

The fourth proportional to 1,558.39, 2,153.31 and 1,246.23 is: 1,721.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.39 : 2,153.31 = 1,246.23 : x
  2. Step 2: Convert to fraction form
    1,558.39/2,153.31 = 1,246.23/x
  3. Step 3: Cross multiply
    1,558.39x = 2,153.31 × 1,246.23
  4. Step 4: Simplify right side
    1,558.39x = 2,683,519.52
  5. Step 5: Solve for x
    x = 2,683,519.52/1,558.39
  6. Step 6: Final answer
    x = 1,721.98

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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.