Home / 1,810.04-2,497.47-1,390.85

Finding the Fourth Proportional to 1,810.04, 2,497.47 and 1,390.85

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Solution

The fourth proportional to 1,810.04, 2,497.47 and 1,390.85 is: 1,919.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,810.04 : 2,497.47 = 1,390.85 : x
  2. Step 2: Convert to fraction form
    1,810.04/2,497.47 = 1,390.85/x
  3. Step 3: Cross multiply
    1,810.04x = 2,497.47 × 1,390.85
  4. Step 4: Simplify right side
    1,810.04x = 3,473,606.15
  5. Step 5: Solve for x
    x = 3,473,606.15/1,810.04
  6. Step 6: Final answer
    x = 1,919.08

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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.