Home / 1,869.68-2,574.36-1,603.76

Finding the Fourth Proportional to 1,869.68, 2,574.36 and 1,603.76

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Solution

The fourth proportional to 1,869.68, 2,574.36 and 1,603.76 is: 2,208.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.68 : 2,574.36 = 1,603.76 : x
  2. Step 2: Convert to fraction form
    1,869.68/2,574.36 = 1,603.76/x
  3. Step 3: Cross multiply
    1,869.68x = 2,574.36 × 1,603.76
  4. Step 4: Simplify right side
    1,869.68x = 4,128,655.59
  5. Step 5: Solve for x
    x = 4,128,655.59/1,869.68
  6. Step 6: Final answer
    x = 2,208.22

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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.