Home / 1,875.51-2,587.01-1,378.17

Finding the Fourth Proportional to 1,875.51, 2,587.01 and 1,378.17

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Solution

The fourth proportional to 1,875.51, 2,587.01 and 1,378.17 is: 1,900.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.51 : 2,587.01 = 1,378.17 : x
  2. Step 2: Convert to fraction form
    1,875.51/2,587.01 = 1,378.17/x
  3. Step 3: Cross multiply
    1,875.51x = 2,587.01 × 1,378.17
  4. Step 4: Simplify right side
    1,875.51x = 3,565,332.68
  5. Step 5: Solve for x
    x = 3,565,332.68/1,875.51
  6. Step 6: Final answer
    x = 1,900.99

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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.