Home / 1,534.09-2,117.06-870.93

Finding the Fourth Proportional to 1,534.09, 2,117.06 and 870.93

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Solution

The fourth proportional to 1,534.09, 2,117.06 and 870.93 is: 1,201.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.09 : 2,117.06 = 870.93 : x
  2. Step 2: Convert to fraction form
    1,534.09/2,117.06 = 870.93/x
  3. Step 3: Cross multiply
    1,534.09x = 2,117.06 × 870.93
  4. Step 4: Simplify right side
    1,534.09x = 1,843,806.47
  5. Step 5: Solve for x
    x = 1,843,806.47/1,534.09
  6. Step 6: Final answer
    x = 1,201.89

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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.