Home / 1,563.40-2,156.63-1,032.45

Finding the Fourth Proportional to 1,563.40, 2,156.63 and 1,032.45

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Solution

The fourth proportional to 1,563.40, 2,156.63 and 1,032.45 is: 1,424.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.40 : 2,156.63 = 1,032.45 : x
  2. Step 2: Convert to fraction form
    1,563.40/2,156.63 = 1,032.45/x
  3. Step 3: Cross multiply
    1,563.40x = 2,156.63 × 1,032.45
  4. Step 4: Simplify right side
    1,563.40x = 2,226,599.39
  5. Step 5: Solve for x
    x = 2,226,599.39/1,563.40
  6. Step 6: Final answer
    x = 1,424.20

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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.