Home / 1,920.17-2,638.34-1,526.51

Finding the Fourth Proportional to 1,920.17, 2,638.34 and 1,526.51

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Solution

The fourth proportional to 1,920.17, 2,638.34 and 1,526.51 is: 2,097.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920.17 : 2,638.34 = 1,526.51 : x
  2. Step 2: Convert to fraction form
    1,920.17/2,638.34 = 1,526.51/x
  3. Step 3: Cross multiply
    1,920.17x = 2,638.34 × 1,526.51
  4. Step 4: Simplify right side
    1,920.17x = 4,027,443.02
  5. Step 5: Solve for x
    x = 4,027,443.02/1,920.17
  6. Step 6: Final answer
    x = 2,097.45

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.