Home / 1,913.09-2,869.30-526.10

Finding the Fourth Proportional to 1,913.09, 2,869.30 and 526.10

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Solution

The fourth proportional to 1,913.09, 2,869.30 and 526.10 is: 789.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913.09 : 2,869.30 = 526.10 : x
  2. Step 2: Convert to fraction form
    1,913.09/2,869.30 = 526.10/x
  3. Step 3: Cross multiply
    1,913.09x = 2,869.30 × 526.10
  4. Step 4: Simplify right side
    1,913.09x = 1,509,525.04
  5. Step 5: Solve for x
    x = 1,509,525.04/1,913.09
  6. Step 6: Final answer
    x = 789.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.