Home / 1,558.59-2,153.07-1,245.93

Finding the Fourth Proportional to 1,558.59, 2,153.07 and 1,245.93

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Solution

The fourth proportional to 1,558.59, 2,153.07 and 1,245.93 is: 1,721.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.59 : 2,153.07 = 1,245.93 : x
  2. Step 2: Convert to fraction form
    1,558.59/2,153.07 = 1,245.93/x
  3. Step 3: Cross multiply
    1,558.59x = 2,153.07 × 1,245.93
  4. Step 4: Simplify right side
    1,558.59x = 2,682,574.51
  5. Step 5: Solve for x
    x = 2,682,574.51/1,558.59
  6. Step 6: Final answer
    x = 1,721.15

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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.