Home / 2,681.51-3,698.28-1,887.46

Finding the Fourth Proportional to 2,681.51, 3,698.28 and 1,887.46

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Solution

The fourth proportional to 2,681.51, 3,698.28 and 1,887.46 is: 2,603.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.51 : 3,698.28 = 1,887.46 : x
  2. Step 2: Convert to fraction form
    2,681.51/3,698.28 = 1,887.46/x
  3. Step 3: Cross multiply
    2,681.51x = 3,698.28 × 1,887.46
  4. Step 4: Simplify right side
    2,681.51x = 6,980,353.40
  5. Step 5: Solve for x
    x = 6,980,353.40/2,681.51
  6. Step 6: Final answer
    x = 2,603.15

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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.