Home / 2,804.02-3,870.40-1,685.14

Finding the Fourth Proportional to 2,804.02, 3,870.40 and 1,685.14

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Solution

The fourth proportional to 2,804.02, 3,870.40 and 1,685.14 is: 2,326.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,804.02 : 3,870.40 = 1,685.14 : x
  2. Step 2: Convert to fraction form
    2,804.02/3,870.40 = 1,685.14/x
  3. Step 3: Cross multiply
    2,804.02x = 3,870.40 × 1,685.14
  4. Step 4: Simplify right side
    2,804.02x = 6,522,165.86
  5. Step 5: Solve for x
    x = 6,522,165.86/2,804.02
  6. Step 6: Final answer
    x = 2,326.01

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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.