Home / 1,620.51-2,237.12-1,031.84

Finding the Fourth Proportional to 1,620.51, 2,237.12 and 1,031.84

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Solution

The fourth proportional to 1,620.51, 2,237.12 and 1,031.84 is: 1,424.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.51 : 2,237.12 = 1,031.84 : x
  2. Step 2: Convert to fraction form
    1,620.51/2,237.12 = 1,031.84/x
  3. Step 3: Cross multiply
    1,620.51x = 2,237.12 × 1,031.84
  4. Step 4: Simplify right side
    1,620.51x = 2,308,345.81
  5. Step 5: Solve for x
    x = 2,308,345.81/1,620.51
  6. Step 6: Final answer
    x = 1,424.46

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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.