Home / 1,531.76-2,111.49-1,262.93

Finding the Fourth Proportional to 1,531.76, 2,111.49 and 1,262.93

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Solution

The fourth proportional to 1,531.76, 2,111.49 and 1,262.93 is: 1,740.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.76 : 2,111.49 = 1,262.93 : x
  2. Step 2: Convert to fraction form
    1,531.76/2,111.49 = 1,262.93/x
  3. Step 3: Cross multiply
    1,531.76x = 2,111.49 × 1,262.93
  4. Step 4: Simplify right side
    1,531.76x = 2,666,653.51
  5. Step 5: Solve for x
    x = 2,666,653.51/1,531.76
  6. Step 6: Final answer
    x = 1,740.91

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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.