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Finding the Fourth Proportional to 1,345.63, 2,016.56 and 652.11

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Solution

The fourth proportional to 1,345.63, 2,016.56 and 652.11 is: 977.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345.63 : 2,016.56 = 652.11 : x
  2. Step 2: Convert to fraction form
    1,345.63/2,016.56 = 652.11/x
  3. Step 3: Cross multiply
    1,345.63x = 2,016.56 × 652.11
  4. Step 4: Simplify right side
    1,345.63x = 1,315,028.10
  5. Step 5: Solve for x
    x = 1,315,028.10/1,345.63
  6. Step 6: Final answer
    x = 977.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.