Home / 1,890.36-2,818.92-1,848.51

Finding the Fourth Proportional to 1,890.36, 2,818.92 and 1,848.51

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Solution

The fourth proportional to 1,890.36, 2,818.92 and 1,848.51 is: 2,756.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.36 : 2,818.92 = 1,848.51 : x
  2. Step 2: Convert to fraction form
    1,890.36/2,818.92 = 1,848.51/x
  3. Step 3: Cross multiply
    1,890.36x = 2,818.92 × 1,848.51
  4. Step 4: Simplify right side
    1,890.36x = 5,210,801.81
  5. Step 5: Solve for x
    x = 5,210,801.81/1,890.36
  6. Step 6: Final answer
    x = 2,756.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.