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Finding the Fourth Proportional to 2,918.02, 4,026.13 and 1,783.39

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Solution

The fourth proportional to 2,918.02, 4,026.13 and 1,783.39 is: 2,460.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.02 : 4,026.13 = 1,783.39 : x
  2. Step 2: Convert to fraction form
    2,918.02/4,026.13 = 1,783.39/x
  3. Step 3: Cross multiply
    2,918.02x = 4,026.13 × 1,783.39
  4. Step 4: Simplify right side
    2,918.02x = 7,180,159.98
  5. Step 5: Solve for x
    x = 7,180,159.98/2,918.02
  6. Step 6: Final answer
    x = 2,460.63

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1.5x scale

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.