Home / 1,860.05-2,566.85-1,009.30

Finding the Fourth Proportional to 1,860.05, 2,566.85 and 1,009.30

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Solution

The fourth proportional to 1,860.05, 2,566.85 and 1,009.30 is: 1,392.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.05 : 2,566.85 = 1,009.30 : x
  2. Step 2: Convert to fraction form
    1,860.05/2,566.85 = 1,009.30/x
  3. Step 3: Cross multiply
    1,860.05x = 2,566.85 × 1,009.30
  4. Step 4: Simplify right side
    1,860.05x = 2,590,714.03
  5. Step 5: Solve for x
    x = 2,590,714.03/1,860.05
  6. Step 6: Final answer
    x = 1,392.82

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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.