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Finding the Fourth Proportional to 2,386.04, 3,579.05 and 654.66

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Solution

The fourth proportional to 2,386.04, 3,579.05 and 654.66 is: 981.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.04 : 3,579.05 = 654.66 : x
  2. Step 2: Convert to fraction form
    2,386.04/3,579.05 = 654.66/x
  3. Step 3: Cross multiply
    2,386.04x = 3,579.05 × 654.66
  4. Step 4: Simplify right side
    2,386.04x = 2,343,062.51
  5. Step 5: Solve for x
    x = 2,343,062.51/2,386.04
  6. Step 6: Final answer
    x = 981.99

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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.